create(**kwargs) Creates a new object, saves it and puts it in the related object set. Returns the newly created object:

clear() Removes all objects from the related object set:

remove(*objs) Removes the specified model objects from the related object set:

add(*objs, bulk=True) Adds the specified model objects to the related object set. Example:

class RelatedManager A “related manager” is a manager used in a one-to-many or many-to-many related context. This happens in

set(objs, bulk=True, clear=False) New in Django 1.9.